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参数资料
| 型号： | MM74C923N |
| 厂商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分类： | 算术逻辑单元 |
| 英文描述： | CMOS SERIES, 9-BIT ENCODER, PDIP20 |
| 封装： | PLASTIC, DIP-20 |
| 文件页数： | 7/13页 |
| 文件大小： | 259K |
| 代理商： | MM74C923N |
DC Electrical Characteristics
MinMax limits apply across temperature range unless otherwise specified (Continued)
Symbol
Parameter
Conditions
Min
Typ
Max
Units
OUTPUT DRIVE (See 54C74C Family Characteristics Data Sheet) (Short Circuit Current)
ISOURCE
Output Source Current
VCC e 5V VOUT e 0V
b
175
b
33
mA
(P-Channel)
TA e 25 C
ISOURCE
Output Source Current
VCC e 10V VOUT e 0V
b
8
b
15
mA
(P-Channel)
TA e 25 C
ISINK
Output Sink Current
VCC e 5V VOUT e VCC
175
36
mA
(N-Channel)
TA e 25 C
ISINK
Output Sink Current
VCC e 10V VOUT e VCC
816
mA
(N-Channel)
TA e 25 C
AC Electrical Characteristics TA e 25 C CL e 50 pF unless otherwise noted
Symbol
Parameter
Conditions
Min
Typ
Max
Units
tpd0 tpd1
Propagation Delay Time to
CL e 50 pF (Figure 1)
Logical ‘‘0’’ or Logical ‘‘1’’
VCC e 5V
60
150
ns
from DA
VCC e 10V
35
80
ns
VCC e 15V
25
60
ns
t0H t1H
Propagation Delay Time from
RL e 10k CL e 10 pF (Figure 2)
Logical ‘‘0’’ or Logical ‘‘1’’
VCC e 5V RL e 10k
80
200
ns
into High Impedance State
VCC e 10V CL e 10 pF
65
150
ns
VCC e 15V
50
110
ns
tH0 tH1
Propagation Delay Time from
RL e 10k CL e 50 pF (Figure 2)
High Impedance State to a
VCC e 5V RL e 10k
100
250
ns
Logical ‘‘0’’ or Logical ‘‘1’’
VCC e 10V CL e 50 pF
55
125
ns
VCC e 15V
40
90
ns
CIN
Input Capacitance
Any Input (Note 2)
5
75
pF
COUT
TRI-STATE Output Capacitance
Any Output (Note 2)
10
pF
AC Parameters are guaranteed by DC correlated testing
Note 1
‘‘Absolute Maximum Ratings’’ are those values beyond which the safety of the device cannot be guaranteed Except for ‘‘Operating Temperature Range’’
they are not meant to imply that the devices should be operated at these limits The table of ‘‘Electrical Characteristics’’ provides conditions for actual device
operation
Note 2
Capacitance is guaranteed by periodic testing
Switching Time Waveforms
TLF6037 – 3
T1
T2
RC T3
07 RC where R
10k and C is external capacitor at KBM input
FIGURE 1
TLF6037 – 4
FIGURE 2
3
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MM74C923N | 制造商:Fairchild Semiconductor Corporation 功能描述:IC 74C CMOS 74C923 DIP20 15V |
| MM74C923N_Q | 功能描述:编码器、解码器、复用器和解复用器 20-Key Encoder RoHS:否 制造商:Micrel 产品:Multiplexers 逻辑系列:CMOS 位数: 线路数量（输入/输出）:2 / 12 传播延迟时间:350 ps, 400 ps 电源电压-最大:2.625 V, 3.6 V 电源电压-最小:2.375 V, 3 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:QFN-44 封装:Tray |
| MM74C923WM | 功能描述:编码器、解码器、复用器和解复用器 20-Key Encoder RoHS:否 制造商:Micrel 产品:Multiplexers 逻辑系列:CMOS 位数: 线路数量（输入/输出）:2 / 12 传播延迟时间:350 ps, 400 ps 电源电压-最大:2.625 V, 3.6 V 电源电压-最小:2.375 V, 3 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:QFN-44 封装:Tray |
| MM74C923WM | 制造商:Fairchild Semiconductor Corporation 功能描述:KEYBOARD ENCODER LOGIC IC |
| MM74C923WM_Q | 功能描述:编码器、解码器、复用器和解复用器 20-Key Encoder RoHS:否 制造商:Micrel 产品:Multiplexers 逻辑系列:CMOS 位数: 线路数量（输入/输出）:2 / 12 传播延迟时间:350 ps, 400 ps 电源电压-最大:2.625 V, 3.6 V 电源电压-最小:2.375 V, 3 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:QFN-44 封装:Tray |
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